Bed-bottom



(No Model.)

A. S. BURNHAM.

BED BOTTOM.

No. 253,678. V Patented Peb. 14,1882.

GM 6% m walNV NTOR 1 ATTORNEYS WITNESSES UNITE STATES PATENT OFFICE.

ALFRED S. BURNHAM, OF PABKERSBURG, IOWA.

BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 253,678, dated February14, 1882.

Application filed January 7, 1852.

To all whom it may concern Be it known that I, ALFRED S. BURNHAM, acitizen of the United States, resident of Parkersburg, in the county ofButler and State of Iowa, have invented a new and valuable Improvementin Bed-Bottoms; and'I do hereby declare that the following is a full,clear,

and exact description of the construction and operation of the same,reference being had to the annexed drawings, making a part of thisspecification, and to the letters and figures of reference markedthereon.

Figure 1 of the drawings is a representation of a perspective of myiifiproved bed-bottom, and Fig. 2 is a bottom view.

This invention has relation to extension bedbottoms, especially adaptedto be packed in the lower portion of a bureau or cabinet-case; and itconsists in the construction and novel arrangement of the sectionalsliding bars forming the side rails, the transverse sliding slatscarrying the springs and mattress or mattress-cloth, and thecross-levers connected by their centers to each other and by their endsto said slats; also, in the combination, with said devices, of themattress-roller or revolving support, all as hereinafter set forth, andespecially pointed out in the claims appended.

1n the accompanyingdrawings, the letter A designates a bureau orcabinet-case, having a cavity or recess, B, in its lower portion for thereception of the; bed-bottom D when the latter is packed away. Onbearings E in the upper part of the recess B is the mattressroller 0, towhich is attached one end of the mattress or mattress-cloth I and belowsaid roller is the space G, into which the bed-bottom slides, resting onthe bottom H of the recess. The front of the recess is open when thebed-bottom is extended; but when the latter is folded awayit is closedby the footboard K.

The side rails, L, each consist of a series of short sliding bars, N,which are designed to be connected together by tongue-and-grooveslide-connections, so that they will lie side by side, with their uppersurfaces on the same level, the construction adopted in connecting thesliders of ordinary extension-tables serving excellently well for thispurpose. The first and last of the sectional sliders are respectivelyconnected to the frame of the case A and to the foot-board K. The middleslider on each side should be provided with a support- (No model.)

ing-leg, a, having a caster. On the sliders of the side rails rest theslats S of the bed-bottom, which carry the bed-springs R, suitablyarranged to support the mattress. The first and last slats are designedto be secured to and at opposite ends of the first and last sliders ofthe side rails, while the intermediate slats are left free to slidethereon, provision being made to keep them parallel and in properrelative position. For this purpose slots 1) are made in the directionof thelength of the slat, near each end, and by means of pins 0 the endsof cross-levers dare connected thereto, said cross-levers being in turnpivoted centrally to each other, as indicated at e, and forming acompound parallel-motion system of levers, which regulates and controlsthe movements of the slats, so that they will work uniformly andsimultaneously when being extended or being moved back into the case. Bythis construction crowding or massing of the slats is prevented, andthey are made to work with facility.

When the mattress-cloth is secured to the foot-board as Well as to theroller, a crank, 2, may be applied to the latter, and by turningit thebed-bottom may be brought into the lower spacein the recess B, while themattress or mattress-cloth is wound on the roller above it.

Having described this invention, what I claim, and desire to secure byLetters Patent, lS

1. In an extension bed-bottom, the sectional sliding bars N, forming theside rails, the transverse slats S, slotted at b and carrying thebed-springs, and the series of cross-levers d, pivoted at their centersto each other and at their ends to the slots of the slats, substantiallyas specified.

2. The combination, with the recessed case A, having the mattressrollerG and bottom H, of the foot-board K,sectional sliding side rails, L, theslotted slats S, the series of crosslevers d, pivoted to each other andto the slats, and the mattress or mattress-cloth, substantially asspecified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

ALFRED S. BURNHAM.

